SIEMENS
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西门子D 21.4·2017
工具和配置
配置notes
System components
13
■
配置
电动反应堆
High-speed switching of the power transistors causes capaci-
电机电缆和电动机中的电流电流以及
steep voltage rises and peak voltages in the motor windings.
These currents can be reduced by installing a motor reactor.
电动反应器上的电压降通常可以忽略不计
在60 Hz及以下的输出频率下。每单位电压
drop
u
k
across the reactor is between 1 % and 4 % at rated cur-
rent and 50 Hz. With a cos
ϕ
0.86，输出频率为
50 Hz, the motor voltage is about 2 % lower (as a result of the
motor reactor) than in systems without a motor reactor.
电动反应堆电动机的相图图
电动反应堆are compatible with all modulation types
（空间向量调制，边缘调制）。
Sine-wave filters
Sine-wave filters are low-pass LC filters which only let through
the fundamental component of the square-wave, pulse-width-
modulation output voltage of a Power Module or Motor Module.
The resonant frequency of the sine-wave filter must be signifi-
cantly lower than the pulse frequency of the Power Module or
电动机模块，并以足够的边距到达尺寸
最大允许输出频率。正弦波过滤器 -
fore define the choice of pulse frequency and place a limit on the
maximum possible output frequency. This type of filter is com-
仅带有空间向量调制的适合。输出电压
因此，电源模块或电动机模块仅限于输出电压
年龄（RMS值）约为0.67 x DC链路电压。与
voltage drop across the sine-wave filter, the maximum possible
输出电压（RMS值）约为0.63 x DC链路伏伏
age. Parameters are used to register a sine-wave filter with the
控制单元。这样可以确保所有依赖的价值观
dent on it, such as permissible modulation modes and maximum
输出频率，正确签名。
Sine-wave filters can be used only in conjunction with Vector
控制和V/F控制模式。
DV/DT滤波器加VPL和DV/DT滤波器紧凑加VPL
The dv/dt filter plus VPL and dv/dt filter compact plus VPL com-
奖励两个组件，即DV/DT反应堆和电压限制
网络（电压峰值限制器）。结果，使用
dv/dt filters plus VPL and dv/dt filters compact plus VPL rep-
resents a suitable method of reducing the voltage load on the
线路绕线电源电压为500 V至690 V
an extent that a special motor insulation is not required. The
轴承电流也大大降低。使用这些
filters therefore allows standard motors with standard insulation
并且没有隔离的轴承可以用罪魁祸首
converters up to line supply voltages of 690 V. This applies to
西门子电动机和第三方电动机。
Sensor Modules
Signal conditioning for various encoders (incremental encoder
sin/cos 1 V
pp
, absolute encoder, resolver) takes place remotely,
i.e. in the vicinity of the encoder, with customized Sensor
Modules. Depending on the measuring system, SMC10, SMC20
or SMC30 Sensor Modules are used. The Sensor Modules are
designed to be mounted on DIN rails. They are also used for the
signal conditioning of external (machine) encoders.
Expansion modules
The CU320-2 Control Unit features interfaces and terminals for
communication as standard. SINAMICS S120 offers the
following expansion modules:
•
TB30 Terminal Board (terminal expansion for plugging into the
CU320-2控制单元上的选件插槽）
•
(终端扩张conne号数)终端模块ction via
DRIVE-CLiQ)
有关扩展模块使用的以下标准
must be taken into account:
•
只能将一个选项板插入选项插槽
the CU320-2 Control Unit.
•
最多可以在驱动器中操作8个端子模块
line-up.
制动模块和制动阻力
Braking units comprise a Braking Module and a braking resistor,
which must be attached externally.
使用制动单元
•
再生能量偶尔和短暂发生，因为
example when the drive brakes (EMERGENCY STOP) and the
drive has no regenerative feedback capability
•
the drive features regenerative feedback units but cannot
return the energy fast enough to the supply on an
“紧急停止”
•
the drive needs to be shut down after a power failure
电源模块的制动单元以阻滞格式组成
仅制动阻力，因为它们具有制动模块
standard.
可以平行连接许多制动模块
DC链接以增加制动功率。每个制动
Module requires its own braking resistor. It is not permissible to
在Booksize和底盘格式上操作制动单元的混合
the same DC link.
The braking power required is calculated from the DC link power
P
d
发电机操作中的驱动器阵容或电源模块的。
电动反应堆
U
G_D211_EN_00131
马达
U
a
U
90°+
a
© Siemens AG 2017